Refactor to use API in Visual Mode

librz/core/core.c

@@ -2441,3 +2441,17 @@ RZ_API RzCmdStatus rz_core_core_plugins_print(RzCore *core, RzCmdStateOutput *st
 	rz_cmd_state_output_array_end(state);
 	return RZ_CMD_STATUS_OK;
 }
+
+/**
+ * \brief Seeks to the first basic block of the current function.
+ *
+ * \param core The RzCore instance.
+ */
+RZ_API void rz_core_seek_first_bb(RZ_NONNULL RzCore *core) {
+	rz_return_if_fail(core);
+	RzAnalysisFunction *fcn = rz_analysis_get_fcn_in(core->analysis, core->offset, 0);
+	if (fcn) {
+		ut64 min_addr = rz_analysis_function_min_addr(fcn);
+		rz_core_seek(core, min_addr, true);
+	}
+}

librz/core/tui/visual.c

@@ -1987,7 +1987,7 @@ RZ_IPI void rz_core_visual_browse(RzCore *core, const char *input) {
 			rz_debug_switch_to_first_thread(core->dbg);
 			break;
 		case 'b':
-			rz_core_cmd0(core, "s $(afb~...)");
+			rz_core_seek_first_bb(core);
 			break;
 		case 'i':
 			// XXX ii shows index first and iiq shows no offset :(

librz/include/rz_core.h

@@ -408,6 +408,8 @@ RZ_API bool rz_core_plugin_add(RzCore *core, RZ_NONNULL RzCorePlugin *plugin);
 RZ_API bool rz_core_plugin_del(RzCore *core, RZ_NONNULL RzCorePlugin *plugin);
 RZ_API bool rz_core_plugin_fini(RzCore *core);
 
+RZ_API void rz_core_seek_first_bb(RZ_NONNULL RzCore *core);
+
 // #define rz_core_ncast(x) (RzCore*)(size_t)(x)
 RZ_API RZ_OWN RzList /*<char *>*/ *rz_core_theme_list(RZ_NONNULL RzCore *core);
 RZ_API char *rz_core_theme_get(RzCore *core);